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Engineered ECS EJECTOR ECS' corrosion Solutions, Complete Corrosion Control. IX ECS Ejector Automatic Air Vent - PAV-W ,' 0 Specifications ■ Stock Number: PAV-W PAV-WS ( upervised) Service Pressure: Up to 175 PSIG (12 Bar) . System Connection: 1" NPT Male Temperature Range: 40°F to 120°F (4.5°C to 49°C) v Dimensions: 14"(L) X 7"(D) X 7"(H) (368mm(W) X 191mm(D) X 203mm(H)) FM weight: 8 Lbs (3.6 Kg) Clear Height: 5" (127mm) APPROVED • Patented redundant float design eliminates piping to a drain U.S. Pat. No. 8,636,023 Support Hanger Not Required General Description The ECS Ejector Automatic Air Vent (PAV-W/WS) is a external corrosion. The float mechanism on the ECS device that provides automatic venting of trapped air in Ejector Automatic Air wet pipe fire sprinkler systems. As a fire sprinkler system Vent will automatically close when water reaches the is filled with water,trapped air migrates to the high point vent and the redundant design eliminates the need to of the system near the vent installation location which plumb the PAV-W/WS to drain. If the primary air vent allows for trapped air to be vented. Trapped air contains valve allows any significant amount of water to leak past oxygen which is the primary cause of corrosion in fire the second air vent valve will close preventing water sprinkler systems. Corrosion in wet pipe fire sprinkler from discharging and provide a system pressure reading systems is directly proportional to the amount of oxygen on the pressure gauge. This condition will be an indica- trapped within the system piping, so a reduction in lion that the primary automatic gas vent valve has failed trapped air will in turn reduce the internal corrosion and requires service or replacement. The pressure gauge is activity of the fire sprinkler system. Venting the trapped designed to be visible from the floor below the ECS air in a wet pipe sprinkler system can also decrease Ejector Automatic Air Vent from a distance of water delivery time and reduce false water flow alarms. approximately 30 feet. The ECS Ejector Automatic Air Vent must be installed as There are two available models of the ECS Ejector shown on the engineering design documents, if a Automatic Air Vent: PAV-W and PAV-WS. The units both location is not provided install the vent at an accessible operate as described previously, but the PAV-WS includes high point on the fire sprinkler system remote from the a wiring connection to a monitoring circuit. A single system riser where gas can be vented and at a location contact rated 24VAC/DC @ 2A for electronic monitoring that the pressure gauge provided for visual monitoring with an end of line resistor (EOLR) must be installed can be viewed from directly below. The PAV-W/WS is according to the wiring diagram in Figure 1 to also equipped with brass components that allows the electronically monitor the PAV-WS. device to be installed in areas subject to Engineered Corrosion Solutions•11336 Lackland Road•St.Louis,MO 63146•Phone 1-314-432-1377• www.ecscorrosion.com ECS EJECTOR AUTOMATIC AIR VENT - PAV-W/WS May 2018-Rev 4 1